A backfucker is a player who will stab u in the back even if u r in the same team as long if he will get better from it. U c backfuckers in evey kinda off game also see buttfucker
Backfucker:im all out of ammo!
Teammate:u shouldt had saved some.
Backfucker: Woh look over there!!!
Teamate:huh theres nothing there!
~backfucker stabs teammate to death and takes his ammo~
Backfucker:yay ammo
Teammate:u backfucker!
by !van September 10, 2005
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The act of being fucked over by someone that is seemingly pleasant and kind-so pleasant and kind in fact that you feel comfortable enough to get backfucked.
by baronvonrick April 10, 2020
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Having sex with an obese person by thrusting one's penis between folds of their back fat (the back being the most unfuckable part of the human body).
Hey dude what'd you do last night with the fat chick from that party?

I totally backfucked her, fuckin' insane.
by HimInMeDickIt December 7, 2009
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When a woman's shoulder blades are squeezed together, making a canal that is then fucked.
That girl was awesome, she let me backfuck her.
by Wordpioneer October 10, 2014
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